Authority refers to legitimate power that is approved by law or the constitution. It consists of both power and legitimacy. Authority is the capacity or ability to exercise influence over others due to one's position or office. Max Weber identified three main types of authority: traditional authority based on long-standing customs, charismatic authority derived from an individual's charisma or divine calling, and rational-legal authority based on rules and bureaucracy. Authority differs from power in that authority is always legalized while power can be acquired through force rather than peaceful means.